Refer to Figure 19-66, in Lehninger for Bacteriorhodopsin ANSWER PROVIDED BELOW:

Question

Refer to Figure 19-66, in Lehninger for Bacteriorhodopsin

ANSWER PROVIDED BELOW:

Refer to Fig. 19-66, Lehninger A) What is the name of the light harvesting prosthetic group contained in bacteriorhodopsin? Retinal Note: Answer is single non-hyphenated word B) Select statements that correctly describe the mechanism of proton transfer by bacteriorhodopsin. Retinal is covalently bound to an interior lysine residue. Bacteriorhodopsin changes conformation resulting in the isomerization of retinal. Proton transfer is facilitated by alterations in the pKa of several interior residues. The initial proton transfer is from a water molecule to Asp85. al proton transfer is from a water molecule to Asp85 Correct Which one of the following statements about bacteriorhodopsin is false? O O O Membrane-spanning -helices undergo conformational shifts. The transition between cis-and trans- retinal is sensitive to light energy. The pKa of residues within the interior are fixed. Water molecules are present in the interior channel where protons are transferred.

Explanation / Answer

A) Retinal is correct answer.

B)u all ready given

C)option c is false

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